Expanding-roller.



Patented May 25,1915.

INVENTOR, Cyan/Zita Q7714,

MC, Afro/Mm THE NORRIS PETERS CO., PHOTO-LITHO. WASHINGTON. 11 C.

GLAUDIUS UGNON, or .EA'IEBSON, NEW JERSEY.

EXPANDING-ROLLER.

Specification of Letters Patent.

Patented May 25, 1915.

Application filed June 24, 1914. Serial No. 847,020.

To all whom it may concern I Be it known that I, CLAUDIUs UcNoN, a citizen of the Republic of France, residing at Paterson, in the county of Passaic and State of New Jersey, have invented certain new anduseful Improvements in Expanding-Rollers, of which the following is a specification.

This invention relates to means for expanding (that is, transversely stretching) fabrics, and it has for its object to provide an expander adapted especially'for the removal of wrinkles, puckers and the like that accumulate in fabrics in the dyeing and similar treatments where they become moist or Wet, and as so adapted being capable of operating on the most delicate fabrics without injuring them in any way, as by straining them or stretching them more in some places than in others.

To this end the invention consists in a set of three rollers having smoothlperipheries and arranged'with their axes end to end and in substantially the same plane but disalined with each other, the said rollers being provided with intermeshing teeth and the two outermost rollers being each long relatively to the intermediate roller.

In the accompanying drawing, Figure 1 is a front elevation, partly in section, of the improved expanding means; and, Fig. 2 is a sectional view on the line was of Fig. 1, showing a fabric being drawn over the improved expanding means.

In any suitable supporting means a is arranged a shaft 1) bent twice (in the present instance) so that its intermediate portion 7) is in the same plane with the other two portions 1), the directions of the bends being the same.

Bevoluble on the portions 1) and b of this shaft as axes are the rollers c (revoluble on the portion 12 and d d (revoluble on the portion 6 7)). These rollers are all of the same diameter and their adjoining ends are provided with (preferably tapering) intermeshing teeth 6. These teeth are tapered in form, it being found that this shape results in the edges of the teeth being presented on the bias to the cloth, so that the undue spacing of parallel threads in the cloth cannot be effected by said edges as would be the case where they extend parallel witlli1 either warp or weft, as in square-cut teet The character of the bearings for the rollers is not essential, but in order to reduce the resistance to their rotation and the consequent strain on the fabric which such resistance induces, I prefer to provide antifriction bearings, as indicated at f.

g designates a system of collars for maintaining the three rollers against endwise movement on the shaft.

In the support a there is arranged, at the concave side of the set of rollers, related to each other as above described, and preferably in the same plane as the several portions 5 and 29 of the shaft, a roller or other guide for the fabric h. The fabric A undergoing treatment occupies substantially the relation to the set of rollers d c d and the guide roller h which is shown in Fig. 2.

That is to say, being drawn in the direction of the arrow shown in said figure, it is in contact with approximately one-third of the diameter of the rollers. It will be apparent that at the point where the fabric first comes in contact with the rollers cl 0 d, z'. 6., near the roller h, the ends of the rollers d d are closer together, due to the angular disposition of their axes, than at the diametrically opposite point. In consequence, when the fabric is drawn over the rollers inthe direction of the arrow in Fig. 2, due to some adhesion between the same and the rollers 03 d, the fabric will be transversely stretched more or less as it departs from the guide roller it, that is to say, as it approaches the side of the roller set at b d relatively remote from the roller 71- and where the ends of the rollers at (Z are widest apart. This stretching is calculated to be enough only to smooth out the cloth, removing while the fabric is wet wrinkles or puckers that cannot be removed at a later stage in the treatment of the fabric. When it approaches a condition where the fabric would be strained, slippage will occur, due to the smooth face of each cylinder d, which it will be noted is of appreciable length thus to obtain a hold on the wet fabric nicely adapted for the purpose in hand. The action of the rollers is gradual, though effectual, and is calculated not to injure the most delicate fabrics.

By providing the intermeshing teeth on the ends of the rollers (Z Z) d I not only close up the undesirable crevices which would otherwise exist between their ends, permitting the fabric to be drawn thereinto and perhaps injured by the edges of the rollers, but insure the obviously desirable rotation of the several rollers in absolute unison.

While it is preferred that the guide h be arranged at the concave side of the roller set, it will be understood that the desired stretching action will still occur in more or less degree if said guide occupies any po-' sition near the roller set so long as it is out of opposition to the most convex portion thereof.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. In combination, with a supporting means, a set of three smooth rollers journaled therein with their axes end to end and in substantially the same plane but disalined with each other, said rollers having intermeshing teeth at their adjoining ends, and the two outermost rollers being each appreciably longer than the third or inter mediate roller; v V

2. In combination, with a supporting means, a set of three smooth rollers journaled therein with their axes end to end and in substantially the same plane but disalined with each other, said rollers having intermeshing tapered teeth at their adjoining ends, and the two outermost rollers being intermediate roller. 1 or s In testimony whereof I aflix my signature in presence of two witnesses. e

GLAUDIUS UGNON.

each appreciablv'longer than the'third or Witnesses:

GEORGE DEANYF, JOHN W. STEWARD.

G'opies of this patent may be obtained for five cents each, by addressing the Commissioner ofjfatents,

' Washington, D. C. v i 

